Tennakone, K.Senevirathne, M.K.I.Kehelpannala, .K.V.W.2015-12-302015-12-302007Journal of the National Science Foundation of Sri Lanka, 35(4):p.245-250https://dl-ifs.nsf.gov.lk/handle/1/924Extraction of pure metallic nickel from ores and plants at Ussangoda, Sri LankaArticle